Device for applying outlet fittings to filter leaves



Jan. a1, 1928. 1 1,657,793

I 'L. L. EDMUNDS DEVICE FOR APPLYINGDUTLET FITTIfIGS TO FILTER LEAVESFiled May 18. 1925 Ix- L1.

' IN VEN TOR.

BY f l Patented Jan. 31 1928.

UNITED srArEs PATENT. OFFI LOUIS L. EDMUNDS, CROCKETT, CALIFORNIA.

nnvron non APPLYiNGoUTLET FITTINGS TO FILTER LEAVES.

Application filed May 18, ms. Serial No. 30,979.

This invention relates to a blamping device provide simple means forapplying this fitting to the assembled leaf and *f'orclampmg its jawportions in gripping relation to the leaves.

\ which The present invention contemplates the use of a pair ofsimultaneously moving clamping jaws adapted to cooperate in forcing thejaws of the outlet fitting against the opposite sides of the filter leafand to permanently grip the leaf.

' The invention is illustrated by way of ex ample in the Fig. 1 is aView in perspective showing the operation of the present nvention.

Fig. 2 is an enlarged view in transverse section through the device withwhich the" present invention is concerned showing the v manner in whichthe outlet fittmgs are acted upon.

. Fig. 3 is a view in section showing the outlet fitting in thecondition it is applied and further disclosing in dotted lines theposition of the jaw members therefor when the fitting has been closedonto the leaf.

Fig. 4 is a fragmentary view in elevation showing; the portion of theassembled filter leaf with the outlet fitting applied thereto.

Referring more particularly to the drawings, 10 ndicates a suitablerigid support upon which are mounted bearing blocks 11 and 12; The upperblock 11 is fastened to the support by suitable eye bolts 13- and 14,

.while the lower block 12 is rigidly-secured in position relative to thesupport by clamping bolts 15.

Thelower block 12 carries a pair of pivoted jaws 17 and 13. These jawsare mounted on a pivot pin 19 carried by-the block 12 which permits thejaws to swing toward and accompanying drawlngs inismount'ed on-one aboutits rotation, and thus to provide means away from Teach other whilebeing vertically suspended.

As shown inFig. 2 of the drawings, it will 1 .be seen that the adjacentfaces of the jaws are suitably recessed to accommodate the outletfitting 20. This fitting, as more clearly shown in Fig. 3, comprises acylindrical portion which is internally threaded toreceive an outletpipe and a pair of jaws 21 and '22, the elevation of which members ismore clearly shown in Fig. 4.

' The fitting before'being applied to. the leaf has its jaws 21 and 22spread apart, as shown by solid lines in Fig. 3, and when it has beenapplied the jawsare forced together as indi cated by dotted lines in jthe. same figure. The jaws 17 and 18 are provided with pressure levers23and 24; respectively, by which the jaws may be swung and pressureexerted. The free end of these levers are forked to receive thetrunnions 25 of nuts 26 and by which nuts the levers are moved. The

nuts 26 are mounted upon the opposite ends of a screw 27 and arethreaded oppositely so that rotation of the screw in a single direction.will cause simultaneous movement of the two nuts in oppositedirections.The screw is rotatably mounted within the upper bearing-member 11 and isfitted with collars 28 disposed upon opposite sides of the bearing toprevent longitudinal movement of the screw when it is rotated. A handwheel 29 or other suitable means end of the screw to bring for applyingpower to the nuts, which in turn will be transferred through the levers23 and 24 .to the jaws 17 and 18 for the purpose previously explained.

In operation of the present invention,-

Qan outlet fitting of the general shape shown in Figs. 3 and 4 isdisposed over the marginal edgeof'an assembled filter leaf, after whichthe edge of the filter leaf and the out let fitting are positionedbetween the jaws 17 and 18 with the fitting registering with a suitablyshaped recess in the working faces of the jaws. after which the handwheel;29 may be rotated to turn the screw 27 in a suitable direction tocause the nuts 26 to move outwardly in the direction of the arb, thussimultaneously rows 'a and swinging the lever arms 23 and 24 in thedirections of the arrows c and -d-. This will swing the'jaws relative totheir pivot 19 and will force the jaw portions 21 and 22 of the outletfitting inwardl against opposite sides of the assembled filter leaf togrip the same as shown in F ig. 2 of the drawin 1 It W551 be understoodthat the filter leaf and the outlet fitting during this operation willbe held in their proper vertical aligned position by an aligning member31. The outlet fitting may then be permanently held in its grippingposition by applying rivets 30 which pass'through the jaw ort-ions ofthe fittings and also through the lter leaf.

By reference to Fig. 2 of the drawing, it will be seen that the outletfitting member is rigidly and temporarily held in an aligned positionrelative to the clamping structure by means of a center pin 31. This pinhas a thread portion 32 at its lower end, which portion extends into thethreaded boss 20 of the outlet fitting. A shoulder 33 on the pin abutsagainst the end face of the boss 20 and also against the lower face ofthe bearing block 12, which block carries the jaws 17 and 18. A slottedopening 34 is formed in the upperend of the pin31 to receive a 1 taperedkey 35 which is driven into the opening and temporaril clamps the pin ina position while it exten s throughthe block,

, and draws the' collar 33 against the under fiat face of the bearingblock 12.

It will thus be evident that the outlet fitting will be held rigidly andin aligned position relative to the meeting faces of the jaws 17 and 18.This insures that irrespective of the angle at which the jaws 21 and 22of the outlet fitting are disposed while spread, the clam ing jaws 17and 18 will force the mem ers 21 and 22 down into parallelclamppositions on the opposite side of the leaf.

a will thus be seen that the device here disclosed, while simple in itsconstruction and modeof operation, permits an enormous force to beeasily applied to the outlet fitting, whereby it will be firmly clampedonto the filter leaf.

While I have shown the prefered form of my invention as now known to me,it is to be understood that various changes may be made in itsconstruction without departing from the spirit of the invention asdefined in the appended claims.

Having thus described my invention, what I claim and desire to secure byLetters Patent is: a

1. A machine for clam ing an outlet fitting to a filter leaf, saifitting having a threaded boss and spaced jaws extending coaxially fromone end of the boss, said machine comprisin a frame, a pair of clampingjaws carrie by the frame and adapted to swing from a'common pivot,operative means for moving said jaws toward and latter be actuated toforce the jaws of the fitting toward each other, the adjacent faces ofthe clamping jaws being recessed to accommodate the boss portion of saidfitting, a centering pin'detachably connected to the frame and adaptedto he. held suspended centrally between the jaws of the machine, saidpin being adapted to be threadedly connected to thc'boss of the fittingto maintain the fitting in correct alignment relative tothe jaws of themachine. V

2. A machine for clamping an outlet fitting to a filter leaf, saidfitting having a boss and a pair of spaced jaws extending coaxially fromone end thereof, said machine comprising a stationary'bearing, a pair ofclamping jaws pivotallyconnected to said bearing and adapted to swingabout a common pivot, the adjacent faces of said clamping jaws beingrecessed to accommodate the boss portion of the fitting whereby thelatter may be positioned between the clampin jaws with the boss withinsaid recesses an the jaw portions of the fitting contiguous to theworkin faces of the clamping jaws, a centering pin detachably connectedwith the bearing and adapted to be firmly con-- nected with the boss;ofthe fitting to firmly and a pairof spaced jaws extendin co-axi-' allyfrom one end thereof, said machine comprising a stationary bearing, apair of clamping jaws pivotally connected to said bearing and adapted toswing about a common pivot,

the adjacent faces of said clamping jaws being recessed to accommodatethe boss portion of the fitting whereby the latter may be positionedbetween the clamping jaws with the boss within said recesses and the jawportions of the fitting contiguons to the workin faces of the clamping'aws, means detachzibly connected with the earing and engageable withtheboss of the fitting to firmly hold the fitting in correct positionbetween the jaws, levers rigidly connected to the jaws and extendingtherefrom, and means connected to said levers and operative to causethem to move the jaws in unison toward and.away from each other.

4. A machine for clamping an outlet fitting to a filter leaf, saidfitting having a boss and a pair of spaced jaws extendin co-axially fromone end thereof, said mac ine com,- prising a stationary bearing, a pairof clamping jaws pivotally connected to said bearing and adapted toswing about a common pivot, the adjacent faces of said clamping jawsbeing recessed to accommodate the boss portion of the fitting wherebythe latter may be p0sitioned between the clamping jaws with the bosswithin said recesses 'and the jaw portions of'the fitting contiguous tothe working faces of the clamping jaws, a centering pin adapted to beprojected through an opening in said bearing and be suspended betweenthe jaws to engage the boss of the fitting and firmly hold the fittingin correct posi- 1 tion between the clamping jaws, means for detachablyholding sald pin in a position relatively fixed with respect to thebearing, and means for simultaneously operating said jaws to cause themto forcibly move in unison 15 toward and away from each other.

LOUIS L. EDMUNDS.

